Paper-box-covering machine.



O. A. GARRETT. PAPER BOX COVERING MACHINE.

APPLICATION FILED DEC.Z3.1907. 91 @044, Patented Apr. 6, 1909.

15 SHEETS-SHEET l,

C. A. GARRETT.

PAPER BOX COVERING MACHINE.

APPLICATION FILED DEO.23,1907.

Patented Apr. 6, I909.

15 SHEETSSHEET 2.

G. A. GARRETT.

PAPER BOX COVERING MACHINE.

APPLICATION FILED DEG.23,1907.

91 7,044. Patented Apr. 6, 1909.

15 SHEETS-SHEET ,3.

Wihmoaeo a rm Patented Apr. 6, 1909.

15 SHEETS-SHEET 4.

C. A. GARRETT.

PAPER BOX COVERING MAUHINE.

APPLICATION FILED DEO.23.1907.

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APPLICATION FILED DEO.23,1907. Q1 7 @}%1 Patented Apr. 6, 1909.

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PAPER BOX COVER-ING- APPLIOATIOH FIL 3D DBO.23,1907.

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APPLICATION FILED DBO. 23, 190'7.

Patented Apr. 6, 1909.

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PAPER BOX OGVERING ma ma APPLICATION FILED DEO.23,1907

aten zel Apr. 6, 199?.

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a. s w W G. A. GARRETT. I PAPER BOX COVERING MACHINE.

APPLICATION FILED DEO.23,1907.

91 7,044, Patented Apr. 6, 190% attozn M c a 0. A. GARRETT.

' PAPER BOX COVERING MAGHINBr APPLIOATION FILED DEC. 23, 1907- 917,044, Patented Apr. 6, 1909.

15 SHEETS-SHEET 10.

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PAPER BOX COVERING MAOHINE. APfLIOATION IILED'DEO. 23.1907.

Patented Apr. 6, 1909.

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@aofia aj v G. A. GARRETT. PAPER BOX COVERING MACHINE.

APPLICATION FILED DBO. 23, 1907.

P flm MW O, kg w W. w *Q W C. A. GARRETT.

PAPER BOX COVERING MACHINE.

, APPLICATION FILED DEO.23,1907. I

Patented Apr. 6, 1909.

15 SHEETSSHEET 14.

MW J 1 (L A. GARRETT.

PAPER BOX COVERING MACHINE,

APPLICATION FILED,DEU.23.1907.

' 917,044 R Patented A r; 6, 1909.

15 SHEETS-SHEET l5.

NNSYLYAEUA, A SSIGNOR OF ONE-HALF TO EAPER-BOX-COVERIIIG MACHINE.

Specification of Letters Patent.

Patented April 6, 1909.

Application filed December 23, 1907. Serial No. 407,796.

T all whom it may concern:

Be it known that I, Cniutnns A. GARRETT, a citizen of the Unite. States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented it new and use ful Paper-Box-Covering Machine, of which the following is a. specification This invention relates to e machine for making paper boxes, in which a. form and paper cover are inserted therein and a ltci passing through a series o'l' steps come out of the machine as a complete box.

It consists of ii machine capable of pcrforming all the steps in the manufacture of n paper box entirely automatically.

It further consists of mechanism for fold.- ing up thesides of the cover which mechanism is so mounted in the frame of the machine 218 to draw the cover tightly'over the form at the same time that it does the folding.

It further consists of a means for removing the form holder from the be): form at a predetermined time, during which period it is supported by a. novel construction adopted to cooperate with s device for folding a portion of the cover into the path or the holder which the holder, in descending, turns inside the box form, and there presses it against the sides of the be); form.

It further consists of a novel means for pressing the turned over portion of it cover against the top of the box.

It further consists of a novel guide means for the holder and box form which is adapted to prevent the cover for a box form getting misplaced during the preliminary steps in the machine and is also adopted to be automatically moved out of operative position during av step in the be ;'mahingprocess.

It further consists of on automatic means for ejecting the completed box from the machine alter the last step in the cycle of operation has been finished.

It further consists of an automatic controlling mechanism whereby the driving mechanism is disconnected and the machine brought to a stop as soon as the -finished box has been ejected from the machine.

It further consists of a machine in which the parts accomplishing each operation are so adjusted and accurately timed that one step follows another immediate and with no stopping oi'the machine unti the hoi; is completed.

it further consists of other novel details of construction, all as will be hereinafter fully set forth.

For the p urposc of illustrating my invention, l. have shown. in the accompanying drawings, one embodiment thereof which has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalitics of which my invention consists can be variously arranged and organized and that in}; invention is not limited to the precise ilrrimgemcnt and organization of these in strumcntnlities as herein forth.

Figure 1 represents a side elevation of a complete nnichine embodying my invention. Fig. 2 represents an end elevation of the same. Fig.3 rcprcsci'its a plan view thereof. F ig. 4i. repr it section on line a-a of Fig. l. lfiig. 5 represents a. plan View of my clutch mechanism in open. position. Fig. 6 represents a. similar view in closed position. Fig. 7 represents the box holder cnm. Fig. 8 represents the wing dog ciim. Fig. 9 represents a. section. on line (')--b, Fig. 8, showing both can Fig. '10 represents a plan view of the wing dog enrrie. Fig. i 1 represents section on line ("*AC, Fi 10. Fig. 12 represents a detail view of t le Wing dog holder. Fig. 13 represents ii detail view of the operating arm for the Wing dog carriage. Fig. 14 represents the presser block cam. Fig. 15 represents the box carriage com. Fig. 16 represents at section on line d-d, Fig. '14,

showing both cams. Fig. 17 represents the presser block operating mechanism. Fig. 18 represents n section on line e-e, Fig. st, showing the presser hlock'mechanism. Fig. 19 is a detail of the resser block guide. Fig. 20 is a section on .ine ff, Fig. 19. Fig. 21 is it section through one of the presscr blocks. Fi 22 is a section on line g Fig. 21. Fig. 23 is ttSlClG View of the ejector com. 24- is an end View of the some. -Fig. 25 represents a. plan view of the guide brushes, and operating connections. Fig. 26 represents at side view of the same showing the operating cam and connections. =Figs. 27, 28, 29, and 31 re )resent, respectively, steos performed in mslringthe box.

oimiiar numerals of reference indicate corresponding perts in the figures.

Referring to the drawings: 1 designates thehsnie of paper hox machine which supports mechanism comprising my invention.'

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' by the plunger 13.

This mechanism is su plied with ower from a driven pulley-2 anc transmittec by means of a suitable clutch device 3 to the shaft 4, which -arries a worm 5 adapted to mesh with a worm gear 6 mounted on a main drive shaft 7. The clutch operating mechanism is illus trated in Figs. 5 and 6 in its preferred form, that of a semi-automatic type, but, of course, any suitable shifting means may be employed to throw the clutch in or out at the proper time.

8 designates a rod adapted to shift the clutch 3 and is actuated by a spring 9 (see Figs. 3 and 4) to throw the clutch into operative engagement with the driving ower. In order to hold the. clutch normally isengaged, the rod 8 has pivoted thereto, a tri' finger 10 ada ted. to engage a sto 11 forme on a pivoted a'rm'12 and hold tlie'rod 8 from movement. The finger 10 is held in engagment with the stop 11, by any-suitable means, as the spring pressed plunger 13 'located in 'a recess 14 of the frame 1 and is moved to disengage the stop 11 by a bell crank lever 15 operated by a treadle shaft 16 through'suit a I le connections 17 and 18;

The arm 12 is pivoted to the frame 1 on pose, a spring 20 is provided which acts to swing the arm 12, as soon as the lug 19 releases it, to bring the stop 11 forward of the finger 10 again.

Referring to Fig. 5, the parts are seen with the clutch disengaged as the lug 19 holds the stopll in osition to be engaged by the finger 1'0, hel in operative position As soon as the treadle shaft 16 is rotated by the operator, the bell crank 15 resses the finger 10 out of engagement wit the lug 11 when the s. ring 9 forcesthe rod 8 to throw the clutc 1 in as shown in Fig. 6. The worm gear 6 is thus started and carries the lug 19 away from the arm-12 which is swung by the spring 20 to bring the stop 11 into position to engage the fingerlO, as soon as t e treadle releases it. The lug 19 has now about completed its revolutlon and picks u the arm 12 and v swings it back to norma position, carrying the stop 11 against the finger 10 to return the rod 8 to release the clutch. In connection with the releasing of the clutch, a lever rollers 41 and 42.

cam groove 24 whereby the irregular contour of the groove gives to the lever 27 a number of oscillations of varied length. Thiscarn lever 27 is suitably connected as by a link 29 to a second lever 30 keyed to a shaft 31 suitably mounted on the frame 1 and on which is carried the plunger operating lever 32. A counterweight 33 on the lever 32 serves to balance the workin parts. .The end of the lever 32 is connects through the link 34 to a rod 35 adapted to reciprocate in the guide channel 36. A wear plate 37 may be ad justably secured in this channel to take up for any wear on the parts The rod 35 carries an overhanging arm 38 in which is seured the plunger 39 adapted to carry a detachable holder 40 of the size of the box to be made. It will now be seen that as the cam 23 rotates, the plunger 39, through the cam lever 27 and its connections, will be reciprocated with a varied stroke due to the contour of thegroove 24. The holder 40 is so positioned over the top of the frame 1 as to pass, when lowered, between two pairs of The rollers 41 are yieldingly mounted as by spring 41 on strips 43 adjustably secured for slidm movement in the top 44 of the frame 1, whi e the rollers 42 are similarly mounted on strips 45 likewise adjustably secured to the top 44. The adjustment of the strips 43 and 45 allowsthe rollers 41 and 42 to be moved relative to each other so that boxes of different sizes may be made on -the same machine by a simple adjusting ,of these parts. It will be noted that the strips 43 are raispd above the strips 45 so as to provide a space between V the pairs of rollers to allow folding members or wing dogs 46 and 47 to move in and complete one step in the box making cycle. The wing dogs 46 and 47 are operated from the cam groove 25 in.the cam member 23 b means of the construction seen to best a vantage in Figs. 1, 4, 10 and 11. This construction consists of a bell crank lever 48 sleeved on the shaft 26, one of its arms having a pin 49 adapted to travel in the groove 25 and the other arm being' connected by a link 50 to a crank 51 mounted on shaft 52 suitably supported in'the frame 1. crank 53 keyed to shaft 52 transmits any movement of the shaft to a connecting rod 54 which joins at its other end a crank 55 mounted on a shaft 56 also secured to the frame 1. These shafts 52 and 56 serve to reciprocate the wing dogs 46 and 47 at the proper time, the mo'tionbeing.transmitted by fin are 57 secured to the respective shafts 52 an 56. These firigersr57are adapted to fit into recesses 58 in sliding. blocks 59 y of the parts operated by the rod 80 and which- G0 shafts in order to bring the wing dogs together.

llurning to Fig. 2-01" the drawings, it will be seen that the holder l0 in its downward movement through the rollers 41 and 42 and wing dogs 46 and 47 has come in contact with the supporting carriage 63, which is also adapted forreciprocating movement.

The purpose of this carriage 63 is to cooperate with the holder and also to support the, be): during a series of operations when the" holder 40 has been temporarily removed from the box and it is operated through the plunger 64 and crank 65 on shaft 66. i\'lo-- tion is transmitted to the shaft 66 from the main shaft 7 through a pair of arms 67 and connected by 'a linl: 67, the former 67 being secured to the shaft 66 and. the latter 68 to the counter shaft '26. '0n the arm 68 is e projecting log 69 fitting in a cam groove 70 of the double cam 71 mounted on the main shaft 7, the contour of which groove 70 is substantially similar to the groove 24 in member TEE-so as tog'ive to the plunger 64, a reciprocating n'iovemcnt closely following the movement of the plunger 39. A. spring 7 2 is suitably attached to the shaft ('36 to return the same to normal position and carry the carriage back to its position between the rollers 41. The cam member 71 is provided on' the o frposite side from the cam groove 70 with a second cam face 73, one of the engaging surfaces of which is formed as an adjustable lug 7 4- preferably secured by a bolt '75 pass ing-through a slot 76 in the member 71. By means of this adjustable lug, the action of the cam may be varied. so as to give a difl'erent length stroke to the part operated by the cam which is essential where boxes of difl'erent sizes are to be made on the, same inachinc. The cam surface 73 is engaged by a roller 7 7 secured in aliuk 75% pivoted in bear in; '79 and carrying; on its end, an operating rod 80. The roller 7 7 is held in engagement with the cam surf ace 7-3 by means of a spring 81 secured to the frame 1.

in Figs. 17 and 18, detail views are shown parts form a feature of my novel box male ing machine. side extensions 83 is secured to the main frame 1 and is apertured at the center to receive a "uide 84 for the lower plunger 64*,

a slot 85 )eing' cut in the side of the guide cross frame 82 carrying 84: to receive a pin 86 on the plunger 64 and thereby prevent rotation of the plunger. Suitably mounted for oscillating moyement in the frame 82 are four small shafts 87, two carrying bell. cranks 88 and 89 and two simple cranl fs 90 and 91. One arm of the bell crank 89 is connected to the rod 80 and the other arm is connected by a link 92 to an arm of the bell crank 88 which also carries a link 93 connected to the crank 90, while the other arm of the bell crank 88 is connected to the cranl-r 91 by a link 94. The four shafts have also secured. thereto, eranlzs 95 adapted to engage recesses 96 in slides 97. From Fig. 17 it will be apparent that a movement of the rod 80 will produce a motion in the several connections as indi- :ated by the dii'lerent arrows and through the cranks will move all the slides 97 and tend to converge-them at the center of the frame. A guide Way 98-is formed in the top of the cross frame 82 and its extensions adapted to receive the slides 97 which in turn have a guide 99 to seat blocks 100. lhese blocks 100 are adjustably connected to the slides 97, as by the bolt 101 and slot 1.02, and have suitably secured thereto, the finger .103 and presser blocks 104. The latter are so mounted as to be held stationary during a portion of the movei'nent of the blocks 100 to accomplish which the following construction illustrates the preferred arrangement, though of course, other means may serve the same end? As theseblocrs 100 areall of identical construction, a description of one will serve for all. The block 100 is provided with a plurality of apertures 10;; and, 106 extending through the block and opening into a slot 107 adapted to receive the presser block lO l which is secured to a bolt 108 passing through an epening 106. and tliwaded "for adjustment into a spindle 109-. "i" ithin the apertures are set screws 1.10 engaging springs 1.1.1 fitting on will be apparent that a'- movement of the block 100 will advance at the same time the presser block 10d until it meets some resistance as the box form, when the springs 111 are compressedand allow the presser llocla: to stop while the block 100 still advances. The spindle 109 is threaded 'for a portion of its length and carries a sleeve 1.1.3 supported for sliding movement in a standard 114 so ured to the cross frame 82. 1' follower 115 rides on the sleeve 113 between which and the thumbscrew 1.16 is a spring 117, the function of which will be herein after referred to. A locl: nut 11S holds the sleeve 113 inproper adjustment.

The operation of the blocks 100 is controlled entirely by the-cam face 73 which moves them to perform a series of steps in the process of making the box. The first movement advances the blocks 100 until the pins 112 projecting from the block 104.. It

presser blocks 1(14'e11g'age the sides of the box 1n the machine, when the forward. movement is stopped while the holder 40 is removed from the box. After this action, the blocks are again moved forward to bring the fingcrs 103 note complete a step, the presser blocks 104 bein stationary and the springs 11.1 taking up tiis forward motion since the follower has now engaged the stop sup- )ort 114-and prevents the presser blocks 104 from further movement which may crush. the box. The cam 73 now moves the fingers 103 back to their former position and the holder 4.0 is again lowered. inside of the box when the cam 73 throws the block 100 forward. far enough to firmly press against the sides of the box. This extra forward movement is allowed for by the compression of the spring 107 and as soon as the fingers 103 have reached a position over the top edges of the box, the cam 73 allows a slight release of the form carria e, which action presses the top of the box i'rmly against the box form and completes the last step in the process. In

' order to remove the completed box from the machine an automatic ejector 119 is provided which is adapted to strike. the box at the proper time and eject it as shown in Fig. 2 at 120. The preferred manner of operating this ejector 118 is through a cam 122, on the main shaft 7, cooperating with a cam roller 123 carried by a pivoted member 124, which member 124 is held by a spring 125 to normally press theroller 123 against the cam face 122. slot 126 of the cam, comes into alinement with the roller 123, the spring 125 quickly swings the member 124 and with it the ejector 118 which strikes the box and throws it out of the machine.

Referring to Figs. 25 and 26, a portion of the machine will be seen which is adapted to come into use when a box of the loose cover type is to be made, that is, one in which the paper cover of the box is not glued on the sin es or top at all, but simply on the inside of the box. Therefore, in view of the loose portion of' the cover, some means must be provided to hold it in place during the downward travel of the box before it reaches the presser block holders. Preferably brushes 127 and 127 are used for this pur ose and are so located as to. ,form walls around the line of travel of the box, the longitudinally disposed brushes127 being secured in any suitable manner to the frame 1. The end brushes 127', in order to allow the ejector to properly throw out the completed box, have. to be moved cordingly aremouiitcd for swinging move-' at the proper moment and acment on the shafts 123- operated from the cam 129 on the main shaft 7. Suitable connectionsas the bell cranlt 130, link 181, lever 132 and link133 are of course interposed to string the brushes down just before the ejec-- It will be seen that as soon as the tor is brought forward to do its work. .Preferably the same cam that operates the ejector is provided with another face to operate the lever 130, though of course these may both beused as separate members. 70 .The operation of the device will now be readily understood by those skilled in the art. in Figs. 27 to 31 are shown the several steps in folding the box cover 134 over the box form 135 and well illustrate the functions performed by the several parts of the machine. The box cover 134 is received by the operator of the machine, cut to the correct size and shape and coated with glue on one side ready for the boxform 135. This form is placed by the operator on thecover and takes the position indicated by the dotted lines 1.36. The fresh glue on the cover adheres to the form and they are both fitted on the holder 40, which accurately fits the inside of the form 135. By pressure on the treadinthe operator rotates the shaft 16 which through connecting rod 18 and bell crank 15 releases catch 10 allowing spring 9 to throw rod 8 to engage the clutch 3 with the driving mechanism. The main shaft 7 then begins its rotation and transmits the movement of the cam 24 through the described connections to the rod 35 which thereby moves downward" taking the holder and box parts along with it. In its downward movement it first passes the rollers 41 which engage and fold the side flaps 138 of the cover, as shown in Fig. 28. into contact with the sides of the form 135. At the same time that the rollers 41 are met, the holder 40 reaches the lower pllunger table" 63, the pressing contact with w ich securely binds together the bottom of the box, and both table and carrier continue the movemcnt together. Passing the rollers 41, the. 106

carrier next comes into alinement with the wing dogs 46 and 47 which are at this moment swung forward by the cam 25 to meetthe wings 1.39 on the side strips 138 and told them over the ends of the box form as shown in Fig. 2%). After thewingdogs have completed this folding step, the rollers 42 are engaged and fold up the ends 140 so that the box assumes the form illustrated in Fig. 30. Of course it willbe understood that the downward move- 115 ment of the carrier and ta blc has been econ-j tinuous one, the wing dogs being so timed in their'action as to meet the wings at the proper, moment. Having now folded the sides an 'f ends of the box, the remaining steps'j'con-jj sist of turning the flap 141 inside the and pressing the cover at allpointsto gluciit' securely to the form. These steps are done while in the presser jaws 10.4 which are; 1:; f

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After passing the rollers 42, the holder a0 and carrier 63 move down to position in line with the presser jaws 104 where the cams controlling the holder and earrie r allow them to remain stationary while the 02 n '73 ljiegins its first operating step. This step consists of advancing the blocks 100 until the jaws we engage the four sides ol the box at which time the cam 24 raises the holder to allow the fingers 103 to operate. The blocks 10o continue their converging movement, but the follower i153 has comeinto contact with the stop support 114 and the jaws we have clearance in the recess 107, the springs 112 compress, l'iolding the jaws lU l statirmary and in contact with the box sides, while the blocks 100 carry the lingers 103 in rward to U irn. in the flap 141. The flap l 4-1 is now, horizontal and in the path oi the holder 40 which iin mediately descends and folds the ilaps 141 against the inside of the box. The holder 46 is now held stationary in the box for a short interval during which a short forward movement of the blocks 100 takes place and as the presser jaws 104 are now abutting the rear wall of the slot 107, they must also advance a slight distance which i-nmement the yielding members l1? allow For. As the'holder 4.0 is within the hex it will be clear that the sides oi the hex gripped firmly at all points and the box cover tightly glnei'l to the form. While in this position, the lingers 103 are above the top of the sides oi the box and in order to glue this top portion to the form, the cams controlling the holder and carrier give a slight release to bring the box up against the fingers 103 whcrelgiy the topis pressed into contact with the form. The box is now complete and ready for removal from the machine; The hloclrs 100 are therefore returned from gripping engagement and the carrier and holder raised to their normal positions during r-ahich upward movement. the cam 129 operates to swing the and brushes 127 LO one side and the cam throws the e ector lorward. to strike the her; out of the machine. The worm gear 6 has now completed i revolution and the proecting lug .El v "m and hrough lug, ll en Ill to return rod 8 which inm'emei. c l and hrm -s the ma 1e lo a stop.

crank. operating niechani H1611} l) 6IS,,EDC&HS to opera e 5 i l l crank rnechl. in a hex making machine, an operating shaft, a form carrier, a holder cooperating therewith, a series of stationary lu'ush 'uides lor said holder, a series ol movable orush guides adjacent said stationary brush guides,

an ejector, and means to simultaneously operate said movable brush guides and ejector.

5.- ln a box making machine, an operating shalt, a form carrier, a holder -o(' erating therewith, a series of stationarv guides for said holder, a series of movable brush guides adjacent said stationary brush guides, an ejector moving in the path of said movable brush guides, and means toshilt said movable brush guides during the operation of said ejector.

" 6. in a box making machine, an operatii'ig shalt, a form carrier, a holder, a series ol stationary brush guides, a second series of brush guides, means to fold a cover over a box form, means to press a cove against a box form, an. ejector, and means to move nation with covering devices for folding die covering material against the sides and ends oi. a box, of presser jaws adapted to engage said covering material, spindles secured to said jaws, blocks having recesses therein to receive said jaws and apertures for said spindles, and, yielding means to permit rolalive movement he'tween said jaws and lilocks.

2%. in. a hex cov ring machine, the combinalion with covering devices for l'olding the covering material against lhcsides and ends ol'a hon, oi presser jaws adapted to cn nge said covering material, him-ks having aperturi therein, spindles "secured to said jaws and 'ilrling one of said apertures, and springs adjustahly sccurml in the remaining ape)- and connected. to said jaws to permit lative movementbetween said jaws and nice is. l

9. in a box covering machine, the combination with covering devices for folding the covering material against the sides and. ends of a hex, of prcsser jaws adapted to engage sei i coverine; material, clocks having aper- 

